型号 功能描述 生产厂家&企业 LOGO 操作

DUAL DECADE COUNTER

The SN54/74LS490 contains a pair of high-speed 4-stage ripple counters. Each half of the SN54/74LS490 has individual Clock, Master Reset and Master Set (Preset 9) inputs. Each section counts in the 8, 4, 2, 1 BCD code. • Dual Version of SN54/74LS490 • Individual Asynchronous Clear and Preset to

Motorola

摩托罗拉

DUAL DECADE COUNTER

The SN54/74LS490 contains a pair of high-speed 4-stage ripple counters. Each half of the SN54/74LS490 has individual Clock, Master Reset and Master Set (Preset 9) inputs. Each section counts in the 8, 4, 2, 1 BCD code. • Dual Version of SN54/74LS490 • Individual Asynchronous Clear and Preset to

Motorola

摩托罗拉

DUAL 4-BIT DECADE COUNTERS

文件:141.13 Kbytes Page:8 Pages

TI

德州仪器

54LS490产品属性

  • 类型

    描述

  • 型号

    54LS490

  • 功能描述

    Asynchronous Up Counter

更新时间:2025-8-7 16:40:02
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
TI
23+
DIP
30000
代理全新原装现货,价格优势
最新
2000
原装正品现货
MOTOROLA/摩托罗拉
QQ咨询
DIP-16
826
全新原装 研究所指定供货商
TI
24+
DIP
2800
原装现货!可长期供货!
TI
DIP
320
正品原装--自家现货-实单可谈
23+
11200
原厂授权一级代理、全球订货优势渠道、可提供一站式BO
TI
2016+
DIP
6528
只做进口原装现货!或订货,假一赔十!
TI
24+
DIP
30617
TI一级代理商原装进口现货
TI
17+
DIP
6200
100%原装正品现货
TI
23+
NA
3680
专业电子元器件供应链正迈科技特价代理特价,原装元器件供应,支持开发样品

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